Description
2009 Cadillac CTS 3.6L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Cadillac CTS 3.6L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Chris Walker –
I was a bit nervous about replacing the ECM on my 2009 Cadillac CTS myself, but this unit made the whole process so much smoother than expected. It came already VIN programmed, which saved me a ton of time and hassle. Installation was straightforward—just plug it in and go, no extra coding needed. Shipping was surprisingly quick too, so I didn’t have to wait long to get my car back on the road. Overall, it’s been running perfectly since the swap, and I’m really happy with the quality and support I received.
Victor King –
Swapped this ECM in my 2009 CTS and it fired right up with zero hassle—truly plug and play! Shipping was quick, and the programmed VIN saved me a ton of time.
Henry Anderson –
The ECM arrived quickly and was exactly as described, programmed perfectly for my 2009 Cadillac CTS 3.6L. Installation was straightforward with no complications, making it a true plug-and-play replacement. After swapping it in, the car fired right up and runs smoothly without any error codes. I’m impressed with the quality and the hassle-free experience overall.
Ethan Cook –
I was a bit nervous ordering an ECM for my 2009 Cadillac CTS, but this unit arrived quickly and exactly as described. The VIN was already programmed, which saved me a ton of hassle during installation. It truly was a plug-and-play experience—no complicated setup or extra trips to the dealer. After swapping it out, my engine ran smoother than it had in months. Customer support was also responsive when I had a quick question, so I felt well taken care of throughout the process. Overall, a fantastic product that restored my car’s performance without any headaches.